This document contains 5 physics homework problems about motion: calculating the distance the Earth travels around the sun in one year given its speed; calculating average speed for a multi-part trip involving driving, stopping for lunch, and more driving; calculating average velocity for a dancer moving left on a stage over time; calculating acceleration for a bus that increased its speed over a period of time; and converting the Earth's rotational speed in miles per hour to feet per second.

1. Physics Homework 29 Aug – 2 Sep 2011<br />Name: __________________________________________ Period:______<br />1. The earth travels at 68,000 miles/hour as it moves around the sun. How many miles does the earth travel in one trip around the sun? <br />2. You drive 200 miles in 3 hours before stopping for 30 minutes for lunch and gas. After lunch you travel 150 miles in an hour and a half. What was your average speed for the trip? <br />3. Calculate the average velocity of a dancer who moves 5 m toward the left of the stage over the course of 15 s.<br />4. Calculate the acceleration of a bus whose speed changes from 6 m/s to 12 m/s over a period of 3 s.<br />5. If the earth spins on its axis at 1100 miles/hour, what is the speed of the Earth's rotation in feet per second? <br />